--- a/master/slave.h	Fri Feb 29 08:27:17 2008 +0000
+++ b/master/slave.h	Fri Feb 29 12:19:48 2008 +0000
@@ -50,6 +50,7 @@
 #include "datagram.h"
 #include "pdo.h"
 #include "sync.h"
+#include "sdo.h"
 
 /*****************************************************************************/